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High-Quality Analytical Reference Materials Spex | NSI | HPS | Chiron

Precision & Accuracy for Every Analysis

Ensure the highest confidence in your laboratory results with high-quality reference materials from industry-leading brands: Spex, NSI, HPS, and Chiron. Our extensive selection supports environmental, food safety, pharmaceutical, toxicology, cannabis, and industrial testing.

Our Reference Materials Include:

  • Inorganic Standards – Trace metals, ICP, ICP-MS, AAS, and wet chemistry solutions
  • Organic Standards – Pesticides, PCBs, PAHs, VOCs, SVOCs, and more
  • Microbiology Standards – Quantitative and qualitative reference materials for pathogen detection, sterility testing, and microbial analysis
  • Proficiency Testing (PT) Samples – Validate accuracy with external quality controls
  • Custom Standards – Tailored solutions to meet your lab’s specific needs – Fill out your custom request today!

Why Choose Us?

  • ISO 17034 & ISO 17025 Accreditation – Certified for reliability and traceability
  • Compliance with EPA, AOAC, ASTM, ISO, and other global regulations
  • High-Purity Materials – Ensuring precision in every analysis
  • Expert Support – Technical assistance to optimize your testing process

Get Started Today

Explore our full range of analytical and microbiology reference materials.

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9,246 Items found

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  • Top rated
SKU: QC-23

QUALITY CONTROL STANDARD 23 (125ml)

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  • Brand Spex
  • Matrix 10% HNO3
  • Concentration 1,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: QC-22-500

AA/ICP QUALITY CONTROL STANDARD 22

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: QC-21-500

QUALITY CONTROL STANDARD 21 HNO3 (500 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: QC-21-250

QUALITY CONTROL STANDARD 21 HNO3 (250ML)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: QC-21

QUALITY CONTROL STANDARD 21 HNO3 (125ml)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
SKU: PH2257

Calcium Ascorbate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Mass Balance; w/Analytical confirmation
SKU: PH1752

Calcium Carbonate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Mass Balance; w/Analytical confirmation
SKU: PEI-128

Hexavalent Chromium Drinking Water Inorganic Standard

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEI-095

Hexavalent Chromium (2 pack)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: ORG-SB8-2Z

Antimony 1,000 µg/mL (1,000 ppm) ( (50 g))

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  • Brand Spex
  • Matrix Base Oil 20
  • Concentration 1,000 µg/mL
SKU: ORG-CU8-4Z

Copper 5,000 µg/mL (5,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 5,000 µg/mL
SKU: ORG-CU8-2Z

Copper 1,000 µg/mL (1,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 1,000 µg/mL
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